291–300 of 372 posts
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Many email receivers do not support v6. You must have an IPv4 address to send email universally.
We're still transitioning to IPv6, so yes - for now - one needs an IPv4 address to reach the whole Internet. That doesn't make "You can't run an email server on ipv6" correct.
At best it’s broken at worst it’s not an email server
What, besides DNS, is preventing the migration to IPv6? Is it old technology still in use? My house is completely IPv6 and not intentionally so.
For myself, IPv6 address are just to annoying to deal with as a human. It's as much of a mental shift as replacing street addresses with Latitude/Longitude coordinates. So I've avoided IPv6 as much as possible.
Lat/lon is a data set primarily used by applications. IP addresses are much the same way aside from private networks and experimentation. If you need to describe a private space in IPv6 you have link local addresses that begin with fe80.
Modern routing tables are primarily defined by dynamic protocols, such as OSPF. If you really need to express a static IP address directly, such as for remote access to a switch, the IP address will be provided to you. This is why Cisco now requires Python for the CCNP.
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We're still transitioning to IPv6, so yes - for now - one needs an IPv4 address to reach the whole Internet. That doesn't make "You can't run an email server on ipv6" correct.
Yes it does- imagine an email server that can’t send/receive email from everyone with an email address. At best it’s broken at worst it’s not an email server
There's nothing that prevents email from working over IPv6. The sender and receiver just need to have IPv6 connectivity.
Every email provider that supports IPv6 will also support IPv4 (for the time being). To use Gmail as an example:
aspmx.l.google.com. 293 IN AAAA 2a00:1450:400c:c0b::1a
aspmx.l.google.com. 293 IN A 173.194.76.27
Did you mean you can't exclusively use IPv6? Because that is also true for browsing the web - because so few websites support IPv6, a lot of links will just not work.
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For myself, IPv6 address are just to annoying to deal with as a human. It's as much of a mental shift as replacing street addresses with Latitude/Longitude coordinates. So I've avoided IPv6 as much as possible.
To extend this analogy a bit... wouldn't 'street addresses' be DNS and lat/long coordinates be IP addresses? Can you elaborate a bit? Where do you find frustration with IPv6? I've been using IPv6 for probably close to 10 years now, and I can't say it's been frustrating
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> You'll notice that if you're on a cellular network, even in the U.S., you will have an IPv6 address. Just a data point. I'm on a cellular network in the UK for both my phone and my phone network (via 4G router). My phone get an IPv6 address only, no IPv4. But my home network gets an IPv4 address only, no IPv6. I can't obtain IPv6 on the home network even though it's the same cellular service (down to the same kind…
>I'm on a cellular network in the UK >My phone get an IPv6 address only, no IPv4 Please tell me which network so I can immediately switch. Three unfortunately still don't use IPv6, and I'd prefer if my phone were IPv6-only than IPv4-only since everything else in my life is IPv6 capable -- all my servers, my home Internet, my email provider, etc... EDIT: So it seems some people have gotten IPv6 addresses from Three la…
The phone Settings > About > Status shows an IPv6 and no IPv4.
However it's not really IPv6-only. It is able to make IPv4 connections, which rather than going over the IPv6 route, are instead tunnelled to the network separately via the modem and the network applies CGNAT and assigned an ephemeral source IPv4.
I've described some of the NAT behaviour here: https://news.ycombinator.com/item?id=25399780
I also I also use Three for my 4G+Wifi home router. That doesn't get an IPv4 at the moment, just an IPv6. None of my home devices can make IPv6 connections over the LAN to my internet services. They resolve ok, but then have no route.
Same applies when using my phone as a Wifi hotspot. The hotspot is IPv4 only, even though the phone itself has an IPv6 uplink.
Now I know it's an experimental partial rollout by Three, I wonder if I'd see the opposite if I swapped the two SIMs.
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To extend this analogy a bit... wouldn't 'street addresses' be DNS and lat/long coordinates be IP addresses? Can you elaborate a bit? Where do you find frustration with IPv6? I've been using IPv6 for probably close to 10 years now, and I can't say it's been frustrating
As someone who thinks they are pretty savvy with "network stuff", I find the whole thing daunting. But my ISP also doesn't support IPv6 yet either, so I have no easy way (or need) to experiment with it yet.
At this point, though, you may be able to find an IPv6 capable ISP and just switch to them. Your phone might also have IPv6 too, especially if it's 4G/LTE.
Any amount of exposure is better than none. If you're using AWS, I can help you setup IPv6 in your VPC and use it with EC2 which can let you get some first hand experience. My email is in my profile if you want to take me up on that offer.
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> I made about $20k a month and it paid my bills through college. Lord man, what kind of bills were these?
If he lived in California, he'd only be taking home 10K a month. Tuition, room and board at Stanford would take most of the rest.
I used to own 10k IP addresses that I sold as proxy servers to internet marketers. I made about $20k a month and it paid my bills through college. I had no idea what I was doing and eventually shut down the company, but damn, I wish I at least kept control of those things. If you want to see some sketchy shit, look deeply into what the VPN companies are doing.
> I made about $20k a month and it paid my bills through college. Lord man, what kind of bills were these?
I know RIPE now want members to charge customers for IPs, but..